Weight by Size Class, Towing Guide and BULL Models

Here’s a quick breakdown of mini excavator weights by size class and what they mean for towing and use:
Mini excavators are grouped by operating weight. This determines digging depth, transport requirements and the type of work the machine can handle.
Mini excavator specs list different weight figures, but they do not all mean the same thing. Here’s what each one actually represents in real-world use.
This is the most important number. It includes the machine, all fluids (fuel, oil, hydraulics), a standard bucket and the operator. This is the actual weight the machine puts on the ground during normal use and the number you should use for towing and transport planning.
This number is rarely useful in practice. It represents the bare machine without fluids, attachments or an operator. You may see it in older specifications, but it does not reflect real working conditions.
Some manufacturers list a transport weight, which reflects the machine positioned for moving between sites. It is usually close to operating weight, but can vary slightly depending on setup.
Operating weight is your baseline — but by the time you're loaded up and ready to roll, the number on your trailer can look quite different.
Steel tracks can add 500–1,000 lbs on mid-size machines. Rubber tracks are lighter, gentler on surfaces, and easier on your towing limit.
Great for stability and heavy lifts — but they can add several hundred pounds and bump you into a higher towing category fast.
BULL mini excavators combine Kubota diesel engines with high-quality hydraulic components and come standard with rubber tracks. This keeps weight down, reduces ground pressure and makes them ideal for landscaping and finished surfaces.
BULL mini excavators combine Kubota diesel engines with high-quality hydraulic components and come standard with rubber tracks. This keeps weight down, reduces ground pressure and makes them ideal for landscaping and finished surfaces.
In most cases, yes. All BULL models can be towed without a CDL when matched with the right truck and trailer.
A Class A CDL is required only if your combined truck and trailer GVWR exceeds 26,000 lbs.
Step 1
Find your truck GVWR on the door jamb sticker
Step 2
Add your trailer GVWR from the VIN plate
Step 3
Keep total under 26,000 lbs and you're CDL-free
💡 Important: Always use GVWR ratings — not actual scale weight.
A standard utility or equipment trailer works for all BULL models.
12-X and 18-X
16–18 ft trailer, 7,000–10,000 lb rating
Larger Models
10,000–14,000 lb equipment trailer
Ground pressure matters more than total weight — it's what determines how much impact your machine has on the surface beneath it.
Rubber tracks keep ground pressure low, making BULL mini excavators ideal for lawns and soft ground. In very soft conditions, track width and ground pressure matter more than total machine weight.
In most cases, yes. All BULL models can be towed without a CDL when matched with the right truck and trailer.
Class A CDL only required if combined GVWR exceeds 26,000 lbs.
Mini excavators weigh between 2,000 and 20,000 pounds, depending on size class. Micro-class machines start at 2,000-4,000 lbs. The most popular contractor class (1.5-2 ton) weighs 3,500-5,000 lbs. Mid-size machines (3-4 ton) run 6,600-9,000 lbs. BULL Equipment models range from 2,900 lbs (12-X) to 7,937 lbs (40-X).
Kubota mini excavators range from about 3,968 lbs for the compact KX018-4 to over 12,000 lbs for bigger models like the KX057. The most commonly compared model, the KX040-4 in the 4-ton class, weighs around 9,500 lbs. BULL Equipment uses Kubota engines in all models. The BULL 18-X at 3,925 lbs is a Kubota-powered machine about the same weight as a Kubota KX018-4, but at nearly half the price.
Yes, for the lightest machines. A half-ton pickup (like a Ford F-150, Ram 1500, or Chevy Silverado 1500) with a tow rating of 8,500 to 13,000 lbs can handle the BULL 12-X at 2,900 lbs on a standard utility trailer. Check your truck’s exact tow rating, as it varies by engine, axle, and tow package. For the BULL 18-X at 3,925 lbs, a three-quarter-ton truck is recommended.
No, use a utility or equipment trailer. Car trailers aren’t made for tracked vehicles and commonly lack proper load ratings and ramps. A 7,000-lb utility trailer is suitable for smaller BULL models; larger BULL models need a 10,000-14,000-lb equipment trailer.
No, not for any BULL model with a standard pickup-and-trailer setup. A Class A CDL is only required when the combined GVWR of the towing vehicle plus trailer exceeds 26,000 lbs. All BULL models combined with a pickup truck and equipment trailer are well under this threshold. Always calculate using GVWR ratings from the door sticker and trailer plate, not actual scale weights.
BULL mini excavator weights in kilograms: 12-X = 1,315 kg, 18-X = 1,780 kg, 20-X = 1,995 kg, 22-X = 2,177 kg, 25-X = 2,499 kg, 40-X = 3,601 kg. For reference, the general mini excavator range runs from approximately 900 kg for the smallest micro machines to over 9,000 kg for the largest models.
Not necessarily. For most landscaping and contractor work, lighter is often better. A heavier machine is more stable when lifting heavy loads and can dig into hard ground more easily. But it is harder to move, more likely to damage the ground, and less maneuverable in tight spaces. The best weight is the one that fits your job needs, not just the heaviest machine you can find.
Get expert advice, fast pricing, and delivery anywhere in the US.
No pressure. No spam. Just honest advice.